Warp feature in 3D modelling

[mselamat]

Hi,

I am having difficulties in creating 3D model of spring washer as below image:

To be specific, I don't know how to create the "warp" at both ends of the part.

Please help.

Regards,

Muzamil

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[John.Pryal]

Hello, have you tried using the Helical Sweep feature? This would be one option that would work for you. Model attached (Creo 3)

Regards

John

[mselamat]

Hi,

Thank you. I tried and it works.

Regards,

Muzamil

[John.Pryal]

Another possible solution. See model attached

Regards

John

[mselamat]

Hi John,

Thanks for helping.

Sorry but I can't opened the file.

I'm using Pro/Engineer Wildfire 5.0.

Regards,

Muzamil

[John.Pryal]

Hi, well unfortunately I can not save in Wildfire 5. Basically, the model was a protrusion swept along a datum curve created by equation. This was the equation, see image.

Regards

John

[Patriot_1776]

Warp feature is the LAST one I'd use for this.  Also, if you actually want to be able to USE these parts (instead of doing it for fun), model them in the flat (compressed/installed) state.  The older PTC fastener library was terrible and had these modeled in the free state - totally unusable.

Me, I'd use a wrap for the trajectory instead of a helical sweep, it's easier IMO......

[mselamat]

Hi,

Thank you for your reply.

I agree that the PTC fastener library is a lil bit unpractical (or maybe I'm the one who can't make full use of it)

Which feature is the "wrap for the trajectory"?

Regards,

Muzamil

[mselamat]

Hi,

Thank you for your reply.

Initially I had the same idea with you:

Create half of the washer and warp it, then make another half and warp it in opposite direction.

However, I found that the 2nd time I want to warp the other half, I can't select only the 2nd half of the washer, but the selection will be overall of the geometry instead.

Is there any other way of selecting only A PART of the created geometry when using warp feature?

Regards,

Muzamil

[DenisJaunin]

Hello

These are nozzles spring washers or spacers Growers

Kind regards.

Denis.

[Patriot_1776]

WHY?  Like I said, if it's for fun, fine, but these washers compress flat at assembly, so to have parts you can actually USE, make them flat and put an angled cut in one side.  Done.

[mashton-2]

I'm with you Frank. Why fill your higher level assembly with extraneous complexity that won't be seen. Our spring washers are just discs the same as plain washers.

[DenisJaunin]

Hello Martin,

It's good like this one drew the puck when we were working on

China ink drawing boards.

Kind regards.

Denis

[Patriot_1776]

Oh, and for reference, and I'm sure very few people know this, but the section on a helical lock washer is NOT rectangular, it's a trapezoid, per the spec.   This isn't the spec, but it shows what I'm talking about.  Me, I made mine for actual use rectangular, with the height being the max (inside) height.  Split Lock Helical Spring Washer Size Dimension Table Chart ANSI/ASME B18.21.1 | Engineers Edge